Crypto API in 256 characters

This is a submission for DEV Challenge v24.03.20, One Byte Explainer: Browser API or Feature.

Explainer

The crypto API covers cryptographic functionality.

crypto.subtle to hash, sign, en/decrypt, verify, and manage cryptographic keys.
crypto.randomUuid() generate v4 UUID.
crypto.getRandomValues(array) fills array with random numbers

Additional Context

256 characters goes QUICK